Safety device on motor cars



Sept. 15, 1925. 1,553,918

. .1. SINGER SAFETY DEVICE 0N MOTOR CARS Filed June 10, 1924 3 Sheets-Sheet 1 Sept 15, 1925..

J. SINGER SAFETY DEVICE on MO-TOR CARS v 5 Shams-Sheet 2 Filed June 10, 1924 Sept-15,1925. 1,553,918 J. SINGER v SAFETY DEVICE ONMOTOR CARS Filed June 10, 1924 3 Sheets-Sheet 5 form of construction.

Patented Sept. 15, 1925.

JACOB SINGER, OF BRATISLAVA, CZEGI-IOSLOVAKIA.

SAFETY nnvrcn on Moron. cans.

Application filed .Tune 10,

To all whom it may concern Be it known that I, JACOB SINGER, a citizen of the Czechoslovakian Republic, residing at Bratislava, Czechoslovakia, have invented certain new and useful Improvements in Safety Devices on Motor Cars, of

' which the following is a specification.

thrown off his feet and caught by the net.

Experiments with safety devices of this type have however shown that when the car is running at high speed only the feet of the person are drawn along in the direction of movement of the car, the body which remains comparatively stiff being unable to drop onto the net, the upper part of the body colliding with the winding roll or the car body and being seriously injured.

The present invention avoids this inconvenience in attaching the upper edge of the catch net to a holding device (oscillating arms or the like) which are resiliently movable in rearward direction and capable to act at the same time upon the lower oscillable arms in such a manner that at the, movement of this holding device the lower edge of the catch net is automatically raised under the pressure of the upper part of the body coming in contact with the net so that a kind of pocket is produced and the feet of the person are not only drawn along by the net but thrown up at the same time, the body being caught in the net. i

The invention relates further to different constructiv arrangements and amongst others to the arrangement according towhich it is possible to catch small-sized persons, children or persons who are kneeling or lying down so that the upper part of their body cannot reach to the upper edge of the i catch net.

. Two embodiments of the invention are shown, by way of example, in the accompanying drawings Fig. ferred form of construction.

Fig. 2 is a front elevation.

Fig. 3 shows in side elevation the second 1 shows in side elevation the pre- 1924.. Serial no. 719,177.

Fig. 4 is a front elevation, and Fig. 5 illustrates a constructional detail. Fig. 6 is a detail section showing the looking rod and associated parts.

In the form of construction shown in Figs. 1 and 2the lower edge of the net 1 or a strip of canvas or the like is attached to a roller 52 mounted between oscillable arms 3 adapted to be bent in forward direction in opposition to the action of springs 1. These oscillable arms 3 are arranged on the downwardly projecting extensions 5 of the supports 6 and their lower ends are connected by an elasticrope 7 or the like. The upper edge of the net is fixed by means of a transverse strap 8 to the upper oscillable arms 9 pivotally mounted on the axle 10 journaled in the supports 6. The upper oscillable arms 9 aresupported by springs 11 and they have curved toothed arms 12 rear-, wardly projecting which cooperate with elastic pawls 13 to lock the oscillable arms 9 in their position. The oscillable arms 9 have further extensions 14: projecting beyond the pivot axle and carrying at the ends catches 15 which bear from behind against the lower oscillable arms 3.

The operation of thissafety device is as follows When the elastic rope 7 strikes against the .feet of a person these feet are at first drawn along so that the body falls back, the upper part of the body strikes consequently against the upper part of the net which, under the strong shock, swings like a chair-back together with the oscillable arms 9 in rearward direction around the pivot axle. The extensions 1 1 of the upper oscillable arms which swing in forward direction raise by means of the catches 15 the lower oscillable arms and consequently the lower edge of the net, said net forming at the same time a sort of pocket. The parts are locked in this position by .-the spring bolts 13 so that the legs of the person run over are thrown up, the body being' securely caught by the net. 7 When the net is not to be used it can be woundyup on the winding roll 2with the aid of a rope pulley 16 (Fig. 2), the rope 17 attached to this pulley 16 being wound around a pulley18 loosely mounted on shaft 10, th other end of the rope being attached near the drivers seat. When the rope 17 1s being unwound the net is wound up on the net forms a pocket in which the person run to a stretched rope 7 or the like fixed to the lower oscillable arms 3. The axle19 on which the upper oscillable arms 9 are fixed is mounted in the upper ends of hollow sup- 1 ports 20 and .connected by anextension 21 of one of said oscillable arms and by a link 22 with a rack 23. The lower oscillable arms 3 are fixed on a hollow shaft 24 mounted in the lower ends of the hollow supports 20. 3

One of said oscillable arms has an extension 25 which, by means-of-a link 26, is connected with rack 27.

rotation by means of a releasable locking device, for instance ratchet wheel andf pawl 31, so that the two racks can be coupled with one another.

hen the upper-part, oi"? the body of the: person run over strikes against the 'upper edge of the net it presses the upper arms 9 against the action of the spring 32 elastically in rearward direction, said spring 32 bearing upon the guides 33 of the rack 23 pressing the carriage 29 upward. The lower arms 3 are at the same time oscillated in upward'direction owing to the coupling of the racks.

'The extensionf25 of the lower farm 3 is shorter than that 21 of theupper arm 9 so.

that the oscillation of the .lower .arms is greater than that of the upper arms 9,"

whereirom results thatthe two edges of the net are moved towards one another and the over is securely-caught (Figs. 3 and 5,). The net respectively the oscillable arms are locked in this position owing to the fact that the carriage is locked in its lowestpo sition against upward movement by means of an automatically acting locking device, for instance a locking rod 34. The locking rod is arranged with itsu'pperend rotatable in the wall of the carrier beam and is forced by means of a spring towards the glide 29,

1 so that the rod engages the upper edge of the glide with its teeth. 'Aftertliislock ing' rod has been releasedthe spring 32 pushes the carriage in upward direction whereby all the parts of the safety device are returned to the initial'position.

In order to ensure the formation of a' pocket even if children or other small peragainst the action of the springs so that the Both racks engage with a commonpinion 28 which-isjguided' by means of a carriage 29 in the hollow support 20 and adapted ftobe locked against tion 22, 26 between the oscillable arms a the racks, 'piniand slit connection might o used in which case the extensions 25 -of*the oscillable arms would have" arc shaped guide slits withwhich engage net-attached at its upper and lower edges J two rocklng arms, the upper-arms heir! sons should be run over the upper part of the body of whom does not reach up to the upper edge of the net, a special device "is provided which serves at the same time for .:rolling upzthe net. vThis device consists of grip under the lower oscillable arms 3.

WVhen the short person is being run over "the oscillable arms 35 will be pushed back catches 39 raise the lower arms 3, the upper oscillable arms 9 being oscillated in rear- Ward direction owing to the rack coupling, the carriage 29 being moved in the hollow support 20 and locked in the lowest position by the locking rod 34 so that the "entire safety device is securely held in this position.

The ropes 38 which clamp the net and .are adapted to be operated byimeans of the j pulleys 37 serve for rolling up the net. Withthis object in View the locking "device for the pinion must first be released by means of rope 41 and lever (Fig. 5) whereupon bylmeans of pulley 42 (F1g. 4) theshaft '43, together with the rope pulleys 44 is ro-i' tated so that through the ropes 45 the arms '35 with the double ropes 38 are moved rearward, whereupon by further rotation the net is rolled up on the ropes 38, the pairs ofioscillable arms 3 and 9 oscillating in opposite directions the one to the other "so that they are laid against the rolled up net (Figs. 4 and 5).

By the rack coupling .23, 27 "the great advantage .is obtained that the closing and opening of the upper and lower oscillable arms 3.and 9 takes place uniformly so that the free ends of the two pairs of arms bear at the same time *on the rolled up net. The stretching of the net takes place when the locking device 30, 31, of the pinion and of leased through the intermediary of t spring 46 which presses the rack 23 down that therack 27 is moved in upward 'diree-j tion through the intermediary of the pinion; After the oscillable arms have opened'thq pinion is locked and the device is in poQ-i -tion forwork. Instead of the "link connect,

of the racks 23, 27.

1. Protecting device for motor vehicle especially automobiles, characterized by the back of a chair to backward but secured against forward movement and ,provided with means immediately engaging the lower arms to cause the upper arms, upon rocking backward through a small angle, to produce an upward rocking of the lower arms through a large angle thereby forming a bed of the netting.

2. A safety device for motor cars comprising in combination a catch net, oscillable arms holding the lower edge of said net, oscillable arms for holding the upper edge of the net, rearward extensions of said oscillable arms projecting over the fulcrum, and catches at the lower ends of said extensions gripping under said oscillable arms of the lower edge of the net.

3. A safety device for motor cars, comprising in combination, a catch net, oscillable arms holding the lower edge of said net, oscillable arms holding the upper edge of said net, a rearward extension of one of said lower oscillable arms, a rack connected with said extension, a rearward extension of one of said upper oscillable arms, a'rack connected with said extension, a carriage between said racks, a pinion on said carriage engaging with said two racks, and means for locking said pinion in its position so that when said pinion is locked the two pairs of oscillable arms oscillate in the same direction but oscillate in opposite directions when said pinion is released.

a. A safety device for motor cars, comprising in combination a catch net, a pair of oscillable arms holding the lower edge of said net, a pair of oscillable arms holding the upper edge of said net, means for transferring the movement of the upper pair of oscillable arms in inverse direction upon the lower pair of oscillable arms, and an automatically acting locking device for the upper pair of oscillable arms to lock the same in the rearward position against movement in forward direction.

5. A safety device for motor oars, comprising in combination a catch net, a pair of oscillable arms holding the lower edge of said net, a pair of oscillable arms holding the upper edge of said net, means for transferring the movement of the upper pair of oscillable arms in inverse direction upon the lower pair of oscillable arms, a third pair of oscillable arms at the middle between said upperand lower pair of arms, two ropes for clamping the net held stretched by said third pair of arms for striking against run over persons of short stature, rearward extensions of said third pair of arms, and catches on the free end of said extensions gripping under said lower pair of arms.

6. A safety device for motor cars, prising in combination a catch net, a

com pair of oscillable arms holding the lower edge of said net, a pair of oscillable arms holding the upper edge of said net, means for transferring the movement of the upper pair of oscillable arms. in inverse direction upon the lower pair of oscillable arms, a third pair of oscillable arms at the middle between said upper and lower pair of arms, two ropes for clamping the net held stretched by said third pair of arms for striking against run over persons of short stature, rearward extensions of said third pair of arms, catches on the free end of said extensions gripping under said lower pair of arms, a rope pulley at the upper end of each arm of the third pair of oscillable arms for guiding the two clamping ropes so that said net is adapted to be wound around said ropes, the upper and lower oscillable arms being oscillated in opposite directions towards said wound up net.

In testimony whereof I affix my signature.

JACOB. SINGER. 

